# Invoicing and Bookkeeping for Small Business Source: https://nerix.ai/product/money Product, Money, Business workspaces # Quotes, invoices, expenses and your books, kept together. Make a quote, turn it into an invoice, send it, record the payment and see it land in your books. People claim expenses from a photo of the receipt. Each part works alone, and they post into the books when those are on. Start free Pricing The free plan is one seat and 3,000 credits a month, never charged. Money - Quotes Offers with a link where the customer can accept online. - Invoices Draft, send, record a payment, credit note or void. - Expenses A receipt photo, an approver and a paid back note. - Books Accounts, entries, bank lines and reports. - Close the month No changes in a closed month. **Fig. 1** The Money pages and what each one is for. They open in business workspaces, once you pick them. 01 Quotes and invoices ## From a quote to a paid invoice, with every version kept. Choose a customer, set the dates and terms, add lines with a description, quantity, price and tax, and write a note. Save a draft, then send it by email with the PDF, and with an e-invoice file if you want one. A sent invoice gets its number and cannot be edited. Record a payment to mark it paid or part paid, correct it with a credit note, or void it. A quote works the same way, with a valid until date. The email carries a link where the customer can accept the quote online. Mark it accepted or declined yourself when the answer came another way, make a new version while the old ones are kept, and turn an accepted quote into an invoice. Repeat an invoice on a schedule. What nerix does here - Draft invoice lines or a covering note when you ask, and say it is a draft. - It never sends an invoice, marks one paid or changes an amount on its own. - Views All, Unpaid, Overdue, Drafts and Paid, with totals at the top. - Quotes Drafts, waiting, accepted, and declined or expired, with the value waiting. - Repeating An invoice that goes out on a schedule you set. - Numbering Set how your invoice numbers run. 02 Expenses ## Take a photo of the receipt, and send it for approval. Say what it was for, then take a photo of the receipt. nerix reads it and you check the details and fix them by hand if it could not read them. You can also add an expense by hand, or add a trip by car, where the distance is multiplied by the rate. A receipt is needed above a set amount. The approver approves, or sends it back with what to fix. Then mark it as paid back with a date. That is a note that someone paid. Nothing is paid from nerix. A person sees only their own claims. What nerix does here - Read a receipt photo as a draft for you to check. A receipt it is unsure about stays marked so. - It never approves or pays a claim. - My claims Not sent, waiting for approval, approved, sent back, paid back. - To approve For approvers, with Approve and Send back. - Trip by car Distance times the rate. 03 The books ## Accounts, bank lines and reports, with nothing edited after posting. Set up your accounts, then post entries with lines that must balance. A posted entry is never edited. You reverse it with a reason. Entries made by invoices, expenses and payroll are marked and reverse from where they came from. Add a bank account and bring in a statement. For each line, accept a suggested match with an invoice, an expense or your own rule, put it in an account, or leave it out. Read the trial balance, profit and loss, balance sheet and tax summary for any dates, and print them. Close the month when everything is matched, and nobody can change it until you open it again. What nerix does here - Explain a figure in plain words. - It never posts, reverses, closes or matches without you confirming, and it does not give tax or legal advice. - Overview Cash, owed to you, you owe, and money in and out over 30 days. - Bank Statement lines with suggested matches rated very likely, likely or possible. - Reports Trial balance, profit and loss, balance sheet and tax summary. - Close the month Stops changes in closed months. 04 Questions ## Questions Does nerix take payments from my customers? + No. Recording a payment on an invoice is a note that you were paid. nerix does not collect money from your customer here. Can I change an invoice after sending it? + No. A sent invoice has its number and cannot be edited. Correct it with a credit note, or void it. Do I need the books to send invoices? + No. Quotes, invoices and expenses work on their own. They post into the books when those are switched on. Does it give tax advice? + No. It records and explains figures. Ask your accountant about tax. Is it in a personal workspace? + No. Money pages are for business workspaces. Need something this does not do? We build it into your workspace. [Built for you](https://nerix.ai/product/custom) Related ## More that goes with this. Start free Pricing - [The Sheet Documents, procedures and handbooks with their figures, every version kept.](https://nerix.ai/product/sheet) - [E-signatures Send a document to be accepted or signed, with a record of every step.](https://nerix.ai/product/e-signatures) - [Templates Hundreds of templates to fill in online, with Word and PDF downloads, premium ones and your own.](https://nerix.ai/product/templates) - [People and HR Staff records, time off, hours, hiring, staff reviews, training and payroll.](https://nerix.ai/product/people) - [All products Every nerix product in one list.](https://nerix.ai/product) ## Learn more ### Templates for this - [Invoice](https://nerix.ai/templates/invoice) - [Payment receipt](https://nerix.ai/templates/payment-receipt) - [Expense report](https://nerix.ai/templates/expense-report) - [Purchase order](https://nerix.ai/templates/purchase-order) - [Finance and accounting](https://nerix.ai/templates/finance-accounting) - [Money and payments](https://nerix.ai/templates/money) ## Keep reading - Sales and contracts bookkeeping [Sales and contracts](https://nerix.ai/blog/category/sales-and-contracts) November 1, 2026 6 min read ### [Bookkeeping basics for small business](https://nerix.ai/blog/bookkeeping-basics-for-small-business) Bookkeeping basics for a small business: what to record, how debits and credits work, a simple monthly routine and when to bring in an accountant. Read the guide - Teamwork expenses [Teamwork](https://nerix.ai/blog/category/teamwork) November 1, 2026 5 min read ### [Expense tracking for small teams](https://nerix.ai/blog/expense-tracking-for-small-teams) Expense tracking for small teams made simple: write a short policy, capture receipts at once, approve claims quickly and choose a tool that fits your size. Read the guide - People and evaluations payroll [People and evaluations](https://nerix.ai/blog/category/people-and-evaluations) November 1, 2026 6 min read ### [Payroll for a small business, step by step](https://nerix.ai/blog/payroll-for-a-small-business-step-by-step) Payroll for small business made plain: what to collect, how a pay run works from gross to net, the checks that catch mistakes and how to keep records. Read the guide