Documentation & Resources
Comprehensive guides and sample files to help you get started with Tax Optimiser
Corporation Tax
Corporation Tax User Guide (PDF)
The complete seven-chapter Corporation Tax guide PDF - setup, trial balance, the computation, capital allowances, losses, review and filing.
View GuideVAT
VAT User Guide (PDF)
The complete seven-chapter VAT guide PDF - setup, spreadsheet mapping, connecting to HMRC, uploading, sending, tracking liabilities and reconnecting when needed.
View GuideVAT Return Template - Basic 9-Box Front Sheet
Simple VAT return template showing the 9-box format required by HMRC. Enter your figures directly on the VAT front sheet - perfect for getting started with spreadsheet VAT submissions.
Download FileVAT Return Template - With Transactions & Formulas
Advanced VAT template with Sales and Purchase transaction tabs and automated formulas that calculate the 9 VAT boxes from your individual sales and purchase records, keeping a full digital audit trail.
Download FileVAT Return Template - From Gross Amounts
VAT template that calculates net values from gross amounts on each Sales and Purchase line. Ideal when your records or accounting system output VAT-inclusive figures.
Download FileVAT Return Template - Flat Rate Scheme
Specialised VAT template for businesses on the Flat Rate Scheme, with Sales and Purchase tabs and pre-configured flat-rate calculations feeding the 9 VAT boxes.
Download FileStatutory Accounts
Statutory Accounts User Guide (PDF)
The complete seven-chapter statutory accounts guide PDF - touring View Accounts, full vs filleted accounts, company details, directors, the FRS 105 and FRS 102 1A note sets, and validation and signing.
View GuideTrial Balance Import Template
Standard template for importing a trial balance. One row per account with Account Name, Debit and Credit columns, comparative Debit and Credit columns for the prior year, and a Bank marker column - the format expected by the Import Trial Balance screen.
Download FileAccountant Workflow
Accountant Workflow Guide (PDF)
The complete six-chapter accountant workflow guide PDF - firm filing settings, creating client organisations, the firm-vs-organisation credentials rules, and sending accounts and Corporation Tax for clients.
View GuideAccountant Workflow Guide (Word)
The same six-chapter accountant workflow guide as an editable Word document, for firms that annotate or adapt internal procedures from it.
Download FilePartnership Returns (Beta)
SA800 Partnership Returns User Guide - beta (PDF)
The complete SA800 Partnership Tax Return guide PDF - creating a partnership period, the six-step wizard, the Partnership Statement, supplementary pages and filing to HMRC. The feature is in beta: email support@taxoptimiser.co.uk for access.
View GuideSA800 Partnership Returns User Guide - beta (Word)
The complete SA800 Partnership Tax Return guide as an editable Word document - the same eight chapters as the PDF. The feature is in beta: email support@taxoptimiser.co.uk for access.
Download FileMTD ITSA
MTD ITSA Guide (PDF)
The complete ten-chapter MTD ITSA guide as a single branded PDF - getting started, connecting to HMRC, your businesses and settings, digital records, quarterly updates, annual adjustments, the tax calculation and the final declaration.
View GuideMTD ITSA Guide (Word)
The same ten-chapter MTD ITSA guide as an editable Word document.
Download FileMTD ITSA Sole Trader Spreadsheet Template
Digital record-keeping template for self-employment quarterly updates. Record income and expenses on the Transactions tab against categories that map to the HMRC boxes - turnover, cost of goods, wages and staff costs, car/van expenses, premises running costs, professional fees and more, with an allowable/disallowable split - and the Summary tab totals them ready to upload against a quarterly obligation.
Download FileMTD ITSA Sole Trader Template with VAT
Sole trader quarterly update template for VAT-registered businesses. Sales and Purchase tabs take a VAT rate against each transaction line, and the VAT tab automatically calculates the 9 VAT return boxes from those transactions (the VAT tab is formula-driven and must not be overtyped) - one digital record covering both MTD ITSA and VAT.
Download FileMTD ITSA UK Property Spreadsheet Template
Digital record-keeping template for UK property quarterly updates. Record rental income and expenses on the Transactions tab against categories that map to the HMRC boxes - rent, rent-a-room relief, premises running costs, repairs and maintenance, professional fees, cost of services, travel costs and residential financial costs - and the Summary tab totals them ready to upload against a property obligation.
Download File