Payment dates calculator

Enter one interim payment cycle to see its deadlines. The default periods follow the relevant provisions of the Scheme for Construction Contracts (England and Wales) Regulations 1998, where those provisions apply. Identify any agreed terms before choosing the defaults.

If you are not paid, you may be able to suspend work, which means stopping until you are paid. The earliest date follows section 112 of the Housing Grants, Construction and Regeneration Act 1996.

Use the dates as a draft payment calendar. Check the selected mechanism, trigger date, service requirements and amendments against your actual agreement. A correct date calculation does not establish that a notice was validly served or that an amount is due.

Where your contract is silent, the Scheme sets the payment dates.

The due date is 7 days after the payment period ends, or the day you make your claim if later (paragraph 4). Your claim is your written application, stating the sum and how you worked it out (paragraph 12). Where the contract sets no payment period, the Scheme uses 28 days.

The other party sends its payment notice within 5 days after the due date, stating the sum it thinks is due (paragraph 9).

The final date for payment is 17 days after the due date (paragraph 8). It is the last day the other party can pay without being late.

A pay less notice must arrive no later than 7 days before the final date for payment (paragraph 10). It tells you that the other party intends to pay less than the sum due.

Section 116 of the Act sets how days are counted. A period starts the day after its date, and leaves out Christmas Day, Good Friday and bank holidays. Weekends still count. We apply it to the Scheme's periods, because the Scheme applies through the Act (section 114), and to your notice to suspend work. We count the periods your contract sets the way your contract says.

If the sum due is not paid by the final date, section 112 lets you suspend work. First you must give at least 7 days' written notice of your intention, stating your grounds. The earliest date shown assumes you give that notice the day after the final date.

Bank holidays come from the Government's list of UK bank holidays for 2025 to 2028, checked on 26 September 2026. Pick the part of the UK the job is in.

Scotland has its own Scheme for Construction Contracts (Scotland) Regulations 1998, with 2011 amendments. Its corresponding interim-payment provisions use the same 7, 5, 17 and 7-day periods modelled here, with Scottish bank holidays. Northern Ireland has separate law: only user-entered contractual periods are calculated for it, with no statutory suspension date.

The dates are guidance only. They do not say whether a notice was valid or arrived in time. That depends on your contract and how the notice was sent. If you are unsure which rules apply to you, ask your solicitor.

Our Main-contract and subcontract administration support service turns the agreed payment mechanism into a working calendar, with responsibility for each date recorded. Our Subcontract payment assessments service supports the application or assessment that follows it.