Accounting

Self Assessment Tax Returns · M25 Fringe

Self Assessment tax returns in St Margarets, Dartford

Sole traders, landlords, directors and higher earners across M25 Fringe use us for one reason: the return is filed correctly, on time, for a price they knew in advance. From St Margarets the process is the same as everywhere in the UK. Records in, draft out, approve, filed, receipts back to you.

from £129 · fixed, one-off

Next deadlines

  • Online Self Assessment filing deadline and balancing payment due
  • Second payment on account due
  • Register for Self Assessment if you started self-employment or new untaxed income in the last tax year
  • Paper Self Assessment return deadline

Who this is for

Self Assessment Tax Returns for St Margarets

Anyone in St Margarets, Dartford who has been told to file a return: the self-employed, landlords with one or several properties, company directors taking dividends, people earning over £100,000 or repaying Child Benefit through the High Income charge, and those with capital gains, foreign income or untaxed savings interest to report.

What is included

Everything inside the fixed fee

  • SA100 and every supplementary page you need (self-employment, UK property, dividends, capital gains, foreign income)
  • A reconciliation against your HMRC personal tax account so nothing is missed or double counted
  • Payments on account calculated and a one-page payment schedule sent to you
  • Claims for allowable expenses, pension relief, Gift Aid and the trading allowance checked before filing
  • Reminders at 60, 30 and 7 days before the 31 January deadline
  • HMRC correspondence about the return we filed handled at no extra charge

How it works

Self Assessment Tax Returns from St Margarets, Dartford, step by step

  1. Scope the job

    We find out what you need filed, when it is due and what state the records are in, and tell you which fixed-fee package applies.

  2. Agree the price

    The fee is confirmed in writing. There is no hourly billing and nothing added for questions during the work.

  3. Hand over the records

    Photographs, PDFs, software access or a spreadsheet, sent however suits you. We confirm what we have and what is missing within two working days.

  4. Approve, then we submit

    You review the draft with our explanation, sign off, and we file. Receipts, copies and the next deadlines come back to you immediately.

Why IGI

What you get in St Margarets

The price for self assessment tax returns is published on this page and is what a client in St Margarets pays. We confirm it in writing first, and the invoice matches the quote.

Nothing for St Margarets is left to the last week. Each deadline relevant to self assessment tax returns is tracked from the day you join, with the next four shown on every page we send you.

Online only, UK based. There is no office in St Margarets to pay for, which is why the fee is the same here as anywhere in England; the work is done by people in the UK who answer the same day.

You get one contact for self assessment tax returns, not a queue. St Margarets, Dartford clients message the same person throughout and get an answer in working hours, usually within a few hours.

The output for St Margarets clients is never just a form. It is the form, a one-page summary of what it says, and a note of the decisions it points to for self assessment tax returns.

Nothing is filed for St Margarets until you have reviewed and approved it. You see the draft, you ask questions, you sign off, then we submit and send you the receipt.

Local facts

About St Margarets, Dartford

St Margarets, Dartford is in M25 Fringe, England. For businesses in England the tax rules are those set by the UK Parliament: the 20/40/45% income tax bands, Class 4 National Insurance for the self-employed at 6% and 2%, Corporation Tax at 19% to 25%, and Stamp Duty Land Tax on property. Business rates are set locally by the council.

Nearby places we also serve for self assessment tax returns
PlaceDistanceDirection
South Darenth0.5 miSW
Darenth0.8 miN
Green Street Green, Dartford0.8 miE
Gore, The0.8 miNW
Sutton at Hone1 miW
Grubb Street1 miE
Kirby, Horton1 miS
Horton Kirby1 miSW

Worth knowing

Rules that come up in this work

Closing a company

A solvent company that has finished its purpose can be dissolved by voluntary strike-off: form DS01 with a £13 Companies House fee, after three months without trading and with all debts paid, final accounts and tax return filed, and assets distributed. HMRC objects to any application where returns or tax are outstanding, so the sequence matters more than the form.

Switching accountants

You can switch accountant at any point in the year. The new firm requests clearance and your records from the old one, which cannot withhold your own documents though it may hold its own working papers until its fees are settled. Agent authorisations with HMRC and Companies House are transferred, and the next deadline is picked up without a gap.

The trading and property allowances

The first £1,000 of trading income and, separately, the first £1,000 of property income each year is tax free under the trading and property allowances. Below those figures no return is needed for that income. Above them you can deduct the £1,000 allowance instead of actual expenses if that is better, which suits side businesses and single-room lets with few costs.

Dormant companies

A dormant company is one with no significant accounting transactions in the year, where the only permitted entries are the payment for shares on incorporation, Companies House fees and penalties. It still files a confirmation statement and simplified dormant accounts every year. A bank charge or an accountant's fee paid from the company ends dormancy and requires full accounts.

Workplace pensions and auto-enrolment

Every employer must assess its workers for automatic enrolment from the first employee's start date. Those aged 22 to State Pension age earning over £10,000 a year must be enrolled into a qualifying pension with minimum contributions of 8% of qualifying earnings, at least 3% from the employer, and a declaration of compliance made to the Pensions Regulator within five months.

Employer National Insurance

Since April 2025 employer National Insurance has been 15% on earnings above a £5,000 secondary threshold, a substantial increase for small employers. The Employment Allowance rose to £10,500 at the same time to soften it for the smallest businesses. Directors deciding their own salary weigh this cost against the Corporation Tax deduction a salary provides.

Allowable expenses

Expense claims are where a return is won or lost in an enquiry. The test is wholly and exclusively for the trade; where a cost is mixed, the business proportion can be claimed if it can be identified. Capital items such as equipment and vans are relieved through capital allowances rather than as expenses, except under the cash basis where they are simply deducted when paid.

Questions

Self Assessment Tax Returns questions from St Margarets

Will Making Tax Digital change my return?

From April 2026 sole traders and landlords with qualifying income over £50,000 send quarterly updates to HMRC through software, with the £30,000 threshold following in April 2027. The year-end return becomes a final declaration. We set this up through our bookkeeping service when it applies to you.

What happens after you file?

You receive HMRC's submission receipt, a PDF of the return, the tax computation and a payment schedule with HMRC's bank details and your payment reference. We diarise next year's deadlines for you and send reminders before each one.

I am employed and have a small side income. Do I need a return?

If the side income is under £1,000 a year the trading allowance covers it and no return is needed. Above that you must register and file. If the side income is the only reason for the return, the £129 package applies and we make sure your PAYE figures from the P60 are reconciled correctly.

Do I pay before or after filing?

The fee is invoiced when you approve the draft, before we file. Nothing is submitted to HMRC until it is paid and you have confirmed every figure, and you receive HMRC's submission receipt within minutes of filing.

Can you deal with HMRC on my behalf?

Once you authorise us as your agent we can speak to HMRC about your return, see your account and respond to letters about the return we filed. The authorisation is free, done through your Government Gateway or a code HMRC posts to you, and takes a few days to activate.

Which expenses can I claim as a sole trader?

Costs that are wholly and exclusively for the business: materials, business travel other than ordinary commuting, a proportion of home running costs, software, insurance, professional fees and bank charges. If your expenses are under £1,000 the trading allowance may be better, and we check both.

Is self assessment tax returns in St Margarets really the same price as elsewhere?

Yes. The fee published on this page is what a client in St Margarets, Dartford pays and what a client in any other part of England pays. It is confirmed in writing before work starts and the invoice matches the quote. Where a higher package applies because your situation is more complex, we say so at the quote stage, never afterwards.

Do you have an office in St Margarets?

No. IGI Accounting is an online-only firm. We serve St Margarets, Dartford and every other UK postcode remotely, with records sent by WhatsApp or email and everything filed electronically. The absence of local premises is why the fee for self assessment tax returns is the same in St Margarets as anywhere else in the country, and why there is nothing to visit and nothing to print.

Start the conversation from St Margarets

Tell us what you need. You get one fixed fee in writing, and nothing is filed until you approve it.

WhatsApp for a fixed quote