Singapore partnerships must e-File their Partnership Income Tax Return, Form P, from Year of Assessment (YA) 2027. IRAS has ended the previous option of paper filing for this return. The precedent partner generally files the partnership’s Form P through myTax Portal from 1 February to 18 April, using the partnership’s income, expenses and allocation of profits or losses among the partners.
An important new rule applies to bigger partnerships: where there are more than ten partners, a Partnership Allocation Template must also be completed and submitted with Form P. IRAS provides the official spreadsheet template, which contains validation checks. Partnerships filing by 28 February can also benefit from pre-filling their partners’ Form B or B1 with the partnership income allocation. Form P does not eliminate each individual’s need to meet their own tax-return obligations.
- Compulsory e-Filing of Form P and any applicable Partnership Allocation Template starts from YA 2027.
- The precedent partner e-Files Form P from 1 February and by the published 18 April deadline through IRAS’s myTax Portal.
- Filing Form P by 28 February allows partnership-income allocations to be pre-filled in partners’ individual Form B/B1 under the current pre-filling initiative.
- Partnerships with more than ten partners must complete IRAS’s Partnership Allocation Template and submit it with Form P.
- A partnership that carried on business in the preceding year must file Form P even without receiving a January reminder; a notified partnership must file even if inactive or loss-making.
- Partnerships with revenue of S$500,000 or more must submit certified statements of accounts with Form P, comprising a profit-and-loss account and balance sheet.
- Those with revenue below S$500,000 still need to prepare accounts and preserve adequate transaction records, even if the certified statement is not normally attached.
- Form P reports the partnership’s income and allocations; individual partners declare their own relevant shares in personal tax returns rather than the partnership paying income tax in their place.
Updated 4 November 2026. This independent eduKateSG guide is not IRAS’s filing portal or personal tax advice. The official 2027 Form P and prevailing IRAS instructions govern actual submission and deadlines.
What changes in YA 2027
- Compulsory e-Filing of Form P and any applicable Partnership Allocation Template starts from YA 2027.
- The precedent partner e-Files Form P from 1 February and by the published 18 April deadline through IRAS’s myTax Portal.
- Filing Form P by 28 February allows partnership-income allocations to be pre-filled in partners’ individual Form B/B1 under the current pre-filling initiative.
- Partnerships with more than ten partners must complete IRAS’s Partnership Allocation Template and submit it with Form P.
- A partnership that carried on business in the preceding year must file Form P even without receiving a January reminder; a notified partnership must file even if inactive or loss-making.
- Partnerships with revenue of S$500,000 or more must submit certified statements of accounts with Form P, comprising a profit-and-loss account and balance sheet.
- Those with revenue below S$500,000 still need to prepare accounts and preserve adequate transaction records, even if the certified statement is not normally attached.
- Form P reports the partnership’s income and allocations; individual partners declare their own relevant shares in personal tax returns rather than the partnership paying income tax in their place.
What partnerships should not assume
- Mandatory e-Filing is not a new general corporate income tax rate or a new separate partnership tax on top of individual income tax.
- Compulsory use of the allocation template begins only for partnerships with more than ten partners, not simply for a firm with more than ten employees.
- Filing Form P early helps pre-fill individual returns, but does not mean a partner need not review or file their own Form B/B1 if required.
- Losses, no business activity after an IRAS notification, or absence of a notification when a partnership operated do not always eliminate filing responsibility.
- An accountant, authorised tax agent or payroll clerk is not automatically the precedent partner in the legal and administrative sense.
- The template is an IRAS administrative spreadsheet, not an invitation to upload personal tax details to an unknown private site.
Chapters — find the relevant filing issue
- 1. Why YA 2027 is a real change for partnerships
- 2. What Year of Assessment actually means
- 3. The precedent partner is responsible for Form P
- 4. The filing window is 1 February to 18 April
- 5. Why 28 February is worth an early target
- 6. What the Partnership Allocation Template does
- 7. More than ten is not the same as ten
- 8. The template should be prepared offline first
- 9. A partnership files even if it made a loss
- 10. An inactive partnership may still have to file
- 11. The S$500,000 revenue threshold for certified accounts
- 12. The two-line and four-line reporting distinction
- 13. Acting and sleeping partners are both relevant
- 14. The partners still have individual income tax duties
- 15. Foreign-sourced income and partner changes need attention
- 16. The practical February-to-April 2027 action plan
The difference between the partnership’s filing, the precedent partner’s responsibility and the individual partner’s own tax return is central. The examples are hypothetical; actual figures should follow the business’s books and appropriate professional advice.
1. Why YA 2027 is a real change for partnerships
IRAS published the mandatory digital filing change in 2026, making e-Filing compulsory from Year of Assessment 2027. The reform changes the required submission channel and, for larger partnerships, strengthens allocation reporting. Many partnerships had already used electronic filing voluntarily, so these taxpayers may notice fewer changes. Those previously relying on paper submission need to prepare their digital access and accounting records. The rule belongs to partnerships’ income tax obligations, not every type of small business. A sole proprietor, company and partnership can have distinct filing requirements even when they all operate from similar-looking premises.
Illustrative Singapore business example
Example: A two-person neighbourhood service partnership previously handed in paper tax forms and assumes it can keep doing so in YA 2027 because its revenue is small.
What to verify and do
IRAS makes Form P e-Filing compulsory regardless of whether the partnership is small. Use the legitimate myTax Portal and review the actual form before the window begins.
2. What Year of Assessment actually means
Singapore income tax is generally assessed by reference to income from the preceding accounting period. For a partnership with accounts closing on 31 December 2026, the relevant business income normally falls in YA 2027. However, some partnerships have non-calendar accounting periods, and their reporting alignment can differ. IRAS’s basic guide provides worked examples showing why a financial year ending in March may correspond with a different YA from the calendar year of the income. This matters when comparing receipts, invoices and expenses for Form P; the year printed on a tax form is not always the same year in which every transaction occurred.
Illustrative Singapore business example
Example: A shop partnership starts operations midway through 2026 and assumes YA 2027 must cover exactly 1 January through 31 December regardless of its chosen financial closing date.
What to verify and do
Record the accounting period and follow IRAS’s correct basis-year guidance. Do not improvise a date range merely because the form says 2027.
3. The precedent partner is responsible for Form P
IRAS defines the precedent partner as the first named partner in the partnership agreement among those present in Singapore, or an agreed and appointed partner where no relevant agreement exists. This person is responsible for e-Filing Form P on the partnership’s behalf, informing partners of their shares, managing certain objections and updating relevant partner status information. That role does not necessarily belong to the largest investor, the oldest person or the employee who keeps the books. An authorised tax agent can assist with preparation under the proper authority, but the underlying partnership responsibility remains.
Illustrative Singapore business example
Example: A family partnership consists of three relatives, and the bookkeeper assumes their role makes them the precedent partner without reviewing the agreement.
What to verify and do
The partners should verify the recorded precedent partner with IRAS and agree on who will gather and check figures before the filing deadline.
4. The filing window is 1 February to 18 April
IRAS states that Form P electronic filing becomes available on 1 February and is due by 18 April. For YA 2027, the published 18 April date falls on a Sunday; taxpayers should use IRAS’s live filing service and any updated deadline instruction rather than assume an extension from the day of the week. It is sensible to submit in advance rather than test an unverified assumption on the final evening. Access to myTax Portal uses the correct Singpass and organisation or partnership identification details, subject to authorised account arrangements.
Illustrative Singapore business example
Example: A precedent partner plans to submit at the last minute and expects that a weekend automatically changes the filing due date without any IRAS notice.
What to verify and do
Work to the published 18 April deadline or the latest official instruction, whichever applies. Save the e-Filing acknowledgement after submission.
5. Why 28 February is worth an early target
IRAS says that partnerships filing Form P by 28 February can have partnership income allocations pre-filled in their individual partners’ Form B or B1. The purpose is to reduce repeated data entry and improve accuracy between partnership and personal tax submissions. However, the convenience depends on the information being correctly submitted and processed, and partners must still check their tax returns. The 28 February date is an early administrative benefit target, not the general last day for Form P. A partnership can file later within the published deadline but may not receive the same pre-filling convenience.
Illustrative Singapore business example
Example: A small design partnership has ready accounts in early February and wants to reduce work for all partners during personal tax season.
What to verify and do
Consider e-Filing before the early target. Verify the allocation schedule and tell partners to review pre-filled information rather than assume it is automatically complete.
6. What the Partnership Allocation Template does
From YA 2027, partnerships with more than ten partners must complete and submit the IRAS Partnership Allocation Template, often abbreviated PAT, with Form P. The official XLSX spreadsheet is intended to help allocate taxable adjusted profits or losses accurately among the partner list. Built-in validation checks can identify inconsistencies that might otherwise require later correspondence. The requirement is determined by number of partners, not the number of workers, clients or branches. Smaller partnerships can still benefit from clear allocation records even when the mandatory PAT threshold does not apply.
Illustrative Singapore business example
Example: A professional practice has twelve equity partners and twenty employees. A different two-partner firm employs forty people.
What to verify and do
Only the first example crosses the more-than-ten-partners threshold on those facts. Use the actual registered partner list, not the payroll headcount.
7. More than ten is not the same as ten
The official phrase is ‘more than 10 partners’. That means eleven or more partners trigger compulsory submission of the Partnership Allocation Template under the stated rule; ten partners do not meet that numerical threshold on their own. This is a simple distinction, but it matters for firms at the boundary or where partners joined or withdrew during an accounting period. The correct count and the allocation of income may depend on effective dates and the partnership agreement. IRAS also requires the appropriate recording of acting and sleeping partners and their share of income.
Illustrative Singapore business example
Example: A partnership has ten members for most of the year and admits an eleventh shortly before its accounting period ends.
What to verify and do
Check the exact relevant partner reporting requirements and dates. Do not simply rely on a photograph of an old organisational chart.
8. The template should be prepared offline first
IRAS’s digital-services page recommends completing the Partnership Allocation Template offline before e-Filing Form P. This allows the person responsible for financial records to review partner details, tax reference information and allocations and to correct validation warnings before opening the live filing session. Using a current official template is important: a spreadsheet reused from an earlier year may not contain the same fields or checks. The template can also include confidential financial and identity information, so it should not be uploaded to unauthorised online converters or forwarded casually in a large group.
Illustrative Singapore business example
Example: An accountant downloads an unofficial template from a search result and finds it asks for bank account passwords to ‘verify’ partner allocations.
What to verify and do
Use the real IRAS file and technical FAQ. Keep completed tax documents in controlled authorised storage and transmit them only through the official filing service.
9. A partnership files even if it made a loss
IRAS states that a partnership which receives a notification to file Form P is required to do so even if the preceding year was loss-making. A negative adjusted result still needs to be allocated and reported correctly. The return cannot be skipped merely because the business has not produced enough revenue to owe tax at the partnership level. Individual partners may also have other sources of income and tax circumstances; loss allocation needs to follow the actual tax rules rather than simply split losses equally without checking the agreement.
Illustrative Singapore business example
Example: A new restaurant partnership ends its first year with expenses greater than sales and assumes loss means no need to submit any tax paperwork.
What to verify and do
If IRAS has issued a filing notice, Form P remains required. Prepare accurate accounts and obtain appropriate tax advice for the actual treatment of losses.
10. An inactive partnership may still have to file
A partnership that did not conduct business in a year may still need to e-File Form P if IRAS sent a notification requiring it. Conversely, a partnership that did conduct business should not assume filing is unnecessary merely because no reminder arrived. IRAS advises contacting the authority when a business was carried on but no filing notification has arrived by January. This two-way distinction protects against both forgetting a genuine obligation and treating every dormant business in Singapore as automatically exempt. Administrative status, registered records and actual trading activity can all matter.
Illustrative Singapore business example
Example: A two-person business paused operations for a year but receives an official notice to submit Form P.
What to verify and do
The notice should not be ignored solely because sales were zero. Check IRAS instructions and provide truthful information for that period.
11. The S$500,000 revenue threshold for certified accounts
IRAS says a partnership with business revenue of S$500,000 or more must submit certified accounts together with Form P by the applicable deadline. The accounts include a profit-and-loss statement and balance sheet signed by the precedent partner to certify they are true and correct. When revenue is below S$500,000 the partnership normally need not attach the certified accounts, but it still must prepare the figures and preserve proper business records. This is a documentation threshold, not a tax-free revenue limit and not a universal exemption from reporting profits.
Illustrative Singapore business example
Example: A partnership earns S$480,000 in revenue and assumes that because the threshold is S$500,000 it need not maintain a balance sheet or income records.
What to verify and do
IRAS still expects proper accounting records. Check the attachment rule separately from the obligation to prepare accurate numbers.
12. The two-line and four-line reporting distinction
IRAS permits a simplified two-line statement for partnerships with revenue of S$200,000 or less under its current guidance. The two figures cover revenue and adjusted profit or loss. Larger partnerships may need a four-line statement and other supporting information as prescribed. Simpler reporting should not be confused with less responsibility for accuracy or fewer record-keeping duties. Taxable adjusted profit is not necessarily identical to the bottom line in a commercial accounts statement; some expenses may be treated differently for tax purposes.
Illustrative Singapore business example
Example: A small partnership has S$180,000 revenue and copies its bank balance into the adjusted-profit field because the simplified statement uses only two lines.
What to verify and do
A bank balance is not taxable adjusted profit. Prepare proper accounts and relevant tax adjustments even when fewer fields appear on the form.
13. Acting and sleeping partners are both relevant
IRAS asks the precedent partner to indicate whether each partner is acting or sleeping. Acting partners are involved in the business’s operations, while sleeping partners contribute capital without participating in day-to-day operations. Both may be taxable on their share of partnership income, but sleeping partners do not qualify for Earned Income Relief on that partnership share under IRAS’s published rules. This distinction has personal income tax consequences and should match the genuine agreement and conduct, not be chosen simply to obtain a preferred tax outcome.
Illustrative Singapore business example
Example: A silent investor owns a share of a small business but never works in it. Another partner runs the operation every day.
What to verify and do
Their classifications can differ. Record actual roles accurately and obtain tax advice if the partner’s involvement or status changes.
14. The partners still have individual income tax duties
A partnership itself is not assessed like a company as a separate corporate taxpayer on the partnership profits. Form P reports income and the allocation among partners, while individuals are generally responsible for declaring the relevant share along with any other taxable income on their own returns. This is why the early pre-fill arrangement matters but does not eliminate the need to review Form B or B1. A person may have employment income, personal reliefs and other sources that the partnership’s Form P does not fully describe.
Illustrative Singapore business example
Example: A partner believes the precedent partner’s successful Form P acknowledgement automatically means their own Form B can be ignored.
What to verify and do
Check personal filing obligations and compare the allocated share against the individual tax return. A convenient pre-filled number still needs review.
15. Foreign-sourced income and partner changes need attention
IRAS notes that foreign-sourced income received by resident individuals through a Singapore partnership may be taxable unless specifically exempt. The Form P process also includes reporting new or withdrawn partners and updating other particulars. These are distinct from the compulsory digital filing change but can be important for partnerships with overseas clients, international work or partners moving between countries. The precedent partner should not assume every foreign receipt is always exempt or that a partner’s departure automatically erases all tax responsibilities for the relevant period.
Illustrative Singapore business example
Example: A consultancy earns overseas fees and a partner relocates during the year. The firm wants to leave both events out of Form P because its business remains registered in Singapore.
What to verify and do
Use the correct allocation, source-of-income and status rules. Seek qualified advice for cross-border cases and comply with IRAS notification requirements.
16. The practical February-to-April 2027 action plan
Before filing opens, identify the precedent partner and gather the prior-year accounts, adjusted profit or loss, partner list and allocation percentages. On or after 1 February, open the authentic myTax Portal and use the current Form P. For partnerships with more than ten partners, complete the latest IRAS Partnership Allocation Template offline first and upload it as directed. Filing by 28 February may help partners’ personal returns pre-fill, while the standard current deadline is 18 April. After submitting, retain the acknowledgement, verify allocation notices and inform partners to review their individual returns.
Illustrative Singapore business example
Example: A family-run firm splits profits between four relatives but has never documented who submits Form P or how the return is checked.
What to verify and do
Assign responsibility, prepare a simple schedule and review actual figures together before the deadline rather than wait for the portal’s last filing day.
The key YA 2027 filing thresholds
| Rule | 2027 requirement | Why it matters |
|---|---|---|
| Form P e-Filing | Compulsory for relevant partnerships | Use myTax Portal rather than paper |
| Ordinary filing window | 1 February to 18 April | Submit on time and save acknowledgement |
| Early partner pre-fill | File by 28 February | Allocation may pre-fill partners’ personal returns |
| Partner count | More than 10 partners | Use Partnership Allocation Template |
| Revenue of S$500,000 or more | Submit certified financial statements | Signed P&L and balance sheet |
Practical tax-filing checklist
- Identify the actual precedent partner under the partnership agreement and IRAS record.
- Confirm the partnership’s relevant accounting period for YA 2027.
- Prepare accurate revenue, allowable expenses and adjusted profit or loss.
- Maintain proper P&L, balance sheet and underlying records even for smaller partnerships.
- Count partners accurately; more than ten triggers the PAT.
- Use IRAS’s current template and complete its validation checks before filing.
- File through myTax Portal with authorised credentials and partner allocations.
- Aim for 28 February if early individual return pre-filling will help.
- Do not assume lack of a reminder, a loss or inactivity cancels a required filing.
- Retain the electronic acknowledgement and review each partner’s individual reporting.
Frequently asked questions
When does compulsory Form P e-Filing begin?
From Year of Assessment 2027 for Singapore partnerships.
What is the IRAS filing window?
Normally 1 February to 18 April under the published partnership guidance.
Who must e-File Form P?
The precedent partner acts on behalf of the partnership, with authorised assistance where appropriate.
Who is a precedent partner?
Generally the first named partner in the agreement, or an agreed appointed partner where relevant.
What happens if Form P is filed by 28 February?
IRAS can pre-fill the partnership allocation into individual partners’ Form B/B1 under its initiative.
When is the Partnership Allocation Template mandatory?
For partnerships with more than ten partners from YA 2027.
Does a partnership with exactly ten partners need that template?
The published threshold is more than ten partners, subject to any later specific IRAS instructions.
Does a business making a loss need to file?
Yes, where notified; a trading partnership has its own filing obligation even if no notice arrives.
What if my partnership is inactive?
If IRAS issued a filing notification, Form P is still required according to its current guidance.
When are certified accounts submitted?
When partnership revenue is S$500,000 or more, with Form P by the applicable deadline.
Does Form P replace partners’ individual income tax returns?
No. The partners must still meet their own reporting obligations.
Where should we get the correct filing form?
Use IRAS’s official myTax Portal and the Partnership Allocation Template linked from IRAS’s digital-services page.
IRAS and other official sources
The following sources establish the new compulsory filing rule, the templates, deadlines and precedent partner responsibilities. Use the live filing portal for your actual submission.
- IRAS: Responsibilities of precedent partners and compulsory YA2027 e-Filing
- IRAS: Basic Guide for Partnerships, filing window and February pre-fill
- IRAS: Partnership digital services and official allocation template
- IRAS myTax Portal (official secure filing)
- ACRA Bizfile (official business registration and particulars)
- IRAS: Keeping business records
Related eduKateSG guides
- Singapore 2027 | SME Working Capital Loans and Business Cash Flow
- Singapore 2027 | Hawker and Market Stall Rental Relief
- How Singapore Works | CPF Retirement Top-ups, Tax Relief and Matching Grants
Conclusion: digitising filing does not remove responsibility
YA 2027 makes partnership Form P e-Filing mandatory and adds an official allocation spreadsheet for larger partnerships. The practical benefit can be faster and more consistent tax administration, especially when early filing allows partner income figures to flow into individual returns.
The essential responsibilities remain familiar: maintain truthful business records, identify who is accountable, allocate results correctly and file by the actual IRAS deadline. Technology makes the process easier only when the underlying figures are reliable.