Finance and business tools
Document generators for small businesses and freelancers, plus calculators for pay, self-employment tax and Amazon fees. Everything here runs in your browser, apart from the optional AI assistant in the resume builder.
Business documents
The Price Quote Generator, Invoice Generator follow the order of a sale: a quote before the work, then an invoice to ask for payment. The Letterhead Generator makes branded paper for letters, and the Bill of Sale Generator records a private sale of a vehicle or item between two people. These are for your own transactions. Rules on what a valid invoice or bill of sale must contain vary by country and state, so check local requirements for anything official.
A quote is an offer with a validity date, an invoice asks for payment of work already agreed, and a receipt confirms that money was received. Keep the numbering consistent across them so a client can match one to the next.
The Resume Builder has several templates and an optional AI assistant for suggestions. The editing happens in your browser; only the text you send to the assistant goes to the server.
Calculators
The Paycheck Calculator estimates take-home pay in the US and Canada, the 1099 Self-Employment Tax Calculator estimates US self-employment tax and quarterly payments, and the Amazon FBA Calculator estimates fees and margin for a product. Tax rules and fee tables change every year, and your own situation may have deductions or credits a general calculator does not know about. Use these for planning, and check the result with an accountant or the official source before you rely on it.
Finance & Business compared
| Tool | Best for | Input | Output | Where it runs |
|---|---|---|---|---|
| Paycheck Calculator | Estimating take-home pay (US and Canada) | Salary and deductions | Pay breakdown | In your browser |
| Invoice Generator | Billing a client | Your details and line items | PDF invoice | In your browser |
| Letterhead Generator | Branded letter paper | Logo and details | In your browser | |
| Price Quote Generator | Quotes and estimates before the work | Services and prices | PDF quote | In your browser |
| Resume Builder | A clean, ATS-friendly resume | Your work history | PDF resume | Browser, some features use the server |
| 1099 Self-Employment Tax Calculator | US self-employment tax planning | Income and expenses | Tax estimate | In your browser |
| Amazon FBA Calculator | Checking a product margin on Amazon FBA | Price, size and cost | Fees and profit estimate | In your browser |
| Bill of Sale Generator | Recording a private sale | Buyer, seller and item details | In your browser |
"On the Fix42 server" means the file or text you give the tool is uploaded, processed and sent back. See the privacy policy for how uploads are handled.