Self Assessment | Croydon
Agency Shifts, Temp Contracts and Side Work in Croydon: Untangling a Mixed-Income Year
A Croydon working year often refuses to be one thing: warehouse shifts through one agency, an umbrella stint on a project, months of self-employed deliveries or care work, maybe two W-2-style jobs overlapping for a week. Each payer taxed you as if they were the whole story; none of them saw the year whole. That is why mixed years so often end in refunds, for the people who reconcile them.
Why the tax rarely adds up correctly
- Emergency and split codes: short engagements love wrong codes; weeks of 0T or BR at the start of each job quietly overtax the year.
- Overlapping jobs share one personal allowance badly; the year-end reconciliation hands the excess back.
- Umbrella stints tax cleanly but carry their own margins and sometimes claimable pension quirks.
- The self-employed months arrive untaxed, with expenses (mileage between gigs, phone, kit, registrations) nobody claims by default.
The reconciliation
One return gathers every P45 and P60, every umbrella statement, every self-employed pound and cost. Total income, correct bands, PAYE credits added up: the result is the true bill, and against five payers' worth of cautious withholding it lands as a repayment far more often than people expect. With CIS months in the mix the refunds grow further: see the Croydon CIS deduction check.
Five payers, one cheque
A Croydon client's year held three agencies, one umbrella and four self-employed months of courier work. Two agencies had used emergency codes; the courier expenses had never been claimed. Reconciled, HMRC owed him £1,640, and the following year's codes were corrected so it would not happen again.
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Frequently Asked Questions
I lost two P45s from short stints. Stuck?
No: payslips, bank credits and HMRC's own employment record (visible to us as your agent) rebuild the picture. Missing paper is normal in mixed years.
Does claiming a refund for wrong codes upset employers?
They never know: reconciliation is between you and HMRC. Future codes just arrive corrected.
My courier app says I'm self-employed but pays weekly like wages. Which is it?
The contract and reality decide, and most app work is genuinely self-employed: untaxed gross, expenses claimable, declared through the return. We map each engagement honestly.
Universal Credit during gaps: does it complicate the return?
UC is not taxable and stays off the return, but self-employed income must be reported to DWP monthly under their rules: two systems, two disciplines.
Can I claim travel between agency sites?
Employee travel to a regular workplace is not claimable; genuinely mobile patterns and self-employed legs are different. The analysis is engagement by engagement, honestly applied.
Student loan came out at one job but not others. Problem?
The return reconciles loan deductions across the year just like tax; underpaid amounts join the bill, overpaid amounts offset. No surprises either way once filed.
How far back can wrong-code refunds go?
Overpayment claims generally reach back four tax years. Serial agency workers often hold more than one year of small refunds; we sweep the lot.
What does the sweep cost?
Fixed fee, quoted before we start, frequently smaller than the first refund. Multi-year sweeps price as a bundle.
A working year with too many payers?
Free 15-minute call: paperwork sweep, code check, and an honest number for what HMRC owes you back.
Or email info@yourtaxhelp.co.uk | Self Assessment accountant in Croydon
General guidance only. Not personal tax advice. Contact us for advice specific to your situation. Figures relate to the 2025/26 tax year unless otherwise stated.