Free tools for accountants

Take-Home Pay Calculator UK Show clients their 2026/27 take-home pay with income tax, NI, student loans and pension, for England, Wales, NI and Scotland. VAT Calculator UK Add or remove VAT at 20%, 5% or a custom rate, line by line, with totals ready to paste into a spreadsheet. Profit Margin Calculator Turn cost and price into margin and markup, or work back from a target margin to a price. DMARC Record Checker Check whether your domain is protected against spoofing. If the policy is p=none, anyone can still send a fake fee invoice that appears to come from your exact address. DMARC Record Generator Build a stronger DMARC record once your practice software, payroll and marketing tools all authenticate properly. Move to quarantine, then reject, while reading the repor... SPF Record Checker Practice management, e-signature and newsletter platforms each need to be listed in SPF. The checker also flags the 10 DNS lookup limit, a common cause of silent failures... DKIM Record Checker Confirm Microsoft 365 or Google Workspace is signing your email. Without DKIM, forwarded messages to clients often fail DMARC and land in spam. Email Header Analyzer When a client forwards a suspicious "updated bank details" message, paste the headers to see where it really came from and whether it passed authentication. SSL Certificate Checker Check the certificate on your website and client portal subdomain. A lapsed certificate on a login page is an immediate red flag for clients. Security Headers Checker Grade your portal and contact pages for HSTS, Content-Security-Policy and clickjacking protection, then pass the plain-English results to your web developer. Merge PDF Combine bank statements, payslips and supporting documents into one file for a mortgage reference or tax return pack. Files stay in your browser and are never uploaded. Split PDF Extract just the pages a lender or HMRC enquiry needs, such as "1-2, 7", rather than sending a client's full annual accounts. Compress PDF Shrink large scanned receipts and statements so they fit email limits. Pages become images, so keep the original searchable version on file. Image to PDF Clients often photograph receipts on their phones. Turn those JPGs into a single A4 PDF, in the right order, ready for your records. Email Deliverability Checker Every DNS record that decides whether your email reaches the inbox, checked in one go — with the fix for anything missing Invoice Generator Add your business and client details, list your work, set tax and payment terms, and download a clean PDF invoice in minutes Number to Words Converter Type any number to see it written out in words, as plain text, check (cheque) wording in 16 currencies or ordinals, then copy it in the case you need Local Business Schema Generator Pick your exact business type, add your address, hours and service area, and get validated LocalBusiness JSON-LD ready to paste and test in Google NAP Consistency Checker Enter your website to compare the business name, address and phone number on your homepage, contact, about and location pages, and in your LocalBusiness schema Website Safety Checker (Is This Site Legit?) Paste a website address to see the public trust signals behind it: how old the domain is, whether HTTPS and the certificate check out, blocklist listings, and warning sig...