Manual chasing fails for a dull reason. It depends on you doing something uncomfortable, on a specific day, again and again. The first reminder is easy. The second is fine. By the fourth email most people stop, not because the client is a villain, but because writing it feels like starting a fight. The invoice sits. The cash sits with them.
Software that chases overdue invoices is supposed to remove that pause. It sends a sequence you approved in advance, then stops when the money arrives. That is the whole product. Everything else, accounting modules, proposal builders, client portals, is optional weight. If a tool cannot tell you, in one sentence, when it stops, it is not a chasing tool yet.
What automatic chasing actually means
Automatic chasing means three mechanics, and you should be able to point at each one in the settings.
- A scheduled sequence, tied to the due date rather than to your mood.
- Escalation rules, so day 1 does not sound like day 30.
- Stop-on-payment logic, so a paid invoice leaves the queue the same day.
A tool that only nags on a fixed weekday, with the same paragraph every time, is a mail merge. It will annoy the client who paid yesterday and bore the client who has ignored you for a month. Escalation is not about being rude earlier. It is about matching the words to how late the invoice is.
What to look for before you pay
Four questions sort the category faster than a feature grid.
- Does it stop when they pay, including a partial payment?
- Can you edit the subject and the body of each step?
- Does the tone change as the invoice gets older?
- Does it work with the invoices you already send, or only with invoices born inside that app?
If you already have invoicing you like, a dedicated chaser that reads that ledger is the fit. If you do not, buying a second app just to send email is how people end up with two overdue lists. The polite payment reminder guide is the wording. The software is only the calendar that sends it.
Five tools, including where each one is weak
Prices below were checked in September 2026 against the vendors' own pages where those pages publish a number. Chaser's entry price is from published captures of its pricing page in the same month, because the live page prices by company turnover and moves. Do not budget from memory. Open the link.
| Tool | Price checked | Strong at | Weak at |
|---|---|---|---|
| Invoice Ninja | Pro $14/month. Free plan, 5 clients. | Price, open source, reminders on Pro. | Dense interface. Easy to misconfigure. |
| Bonsai | Essentials $25 per user/month, or $19 billed annually. | Contracts, proposals, and invoices together. | You pay per user for a whole studio, not a reminder button. |
| FreshBooks | USD monthly: Lite $23, Plus $43, Premium $70. | Mature reminders inside real accounting. | You buy the books whether you wanted them or not. |
| Chaser | Captures of chaserhq.com put Compact near £199 / $259 a month. | Chases invoices that already live in Xero or QuickBooks. | Built for a finance team, not a solo freelancer. |
| Incusia | Pro $29/month, price locked in the contract. Reminders are on Pro. | Invoicing without becoming your accountant. | It will not chase invoices you created in another app. |
Invoice Ninja
Invoice Ninja has the most generous free tier in this list. The company said, in its January 2026 pricing note, that the free plan stays free with 5 clients and unlimited invoices. Pro is $14 a month, or $140 a year. Automatic payment reminders are listed on Pro, not on the free plan. The product is open source and can be self-hosted. The white-label self-host fee they published is $40 a year.
It is strong when you want a lot of invoicing for very little money and you are willing to learn a busy screen. It is weak when you want the software to feel quiet. People who abandon it usually do not complain about the price. They complain that they could not find the reminder schedule, or that the email sounded like the software. If that tradeoff is fine, start here. I would rather send you to Invoice Ninja than pretend $14 is a bad deal.
Bonsai
Bonsai's own pricing page lists Essentials at $25 per user per month, or $19 if you pay annually. Basic is $15 monthly or $9 annually. Premium is $39 or $29. This is a freelancer operating system: proposals, contracts, invoices, and reminders in one login. It is strong if you are tired of a contract in one tab and an invoice in another.
It is weak if you only needed the chase. You are paying for the studio around the email. Per-user pricing also gets expensive the moment a second person sends invoices. If your work is a contract plus an invoice every time, Bonsai earns the $25. If your work is 'I already have a contract and I just need them to pay,' it is the wrong shape.
FreshBooks
FreshBooks published its 2026 USD prices in its own price-change FAQ: Lite $23 a month, Plus $43, Premium $70, with about 10% off on annual billing. The old '$19 Lite' figure is out of date after the March 2026 increase. Reminders are part of a mature product. So is accounting, client caps on the cheaper plans, and a pile of reports.
It is strong if you want the books and the reminders from the same vendor and you will actually use the books. It is weak if you wanted a chasing tool and got a small accounting department. Client limits on Lite and Plus are how people get pushed up the price list. Read Incusia vs FreshBooks if that is the comparison you are already in. I am not going to tell you FreshBooks is a bad product. I am going to tell you it is a large one.
Chaser
Chaser is not invoicing software. It plugs into accounting tools and chases the invoices that already exist there. Published captures of its pricing page in September 2026 put the entry Compact plan at about £199 a month, often shown near $259, with higher tiers for larger turnover. Confirm the live number on chaserhq.com/pricing before you compare, because the bands move and I do not want a stale dollar figure doing your budget.
It is strong for a finance team that already lives in Xero, QuickBooks, or Sage and wants chasing, statements, and sometimes calls or letters, without replacing the ledger. It is the wrong buy for a solo freelancer sending eight invoices a month. The price is the product telling you who it is for. If that is not you, do not force it.
Incusia
This is our product, so treat the paragraph as a disclosure, not a trophy. Reminders sit on the Pro plan at $29 a month. The price is locked in the terms for as long as the account stays active, which is the part I care about, because the rest of this list has a habit of raising prices. Incusia does not try to be your accountant. There is no general ledger hiding behind the invoice.
It is strong if you want invoices, a payment button, and a reminder sequence without adopting a bookkeeping suite. It is weak if your invoices already live somewhere else. Incusia will not chase a FreshBooks invoice. It also will not suit you if you need Chaser's ledger integrations or Invoice Ninja's free tier. The free Incusia plan does not include reminders. See pricing for the current line, and do not take my word over the page.
Doing it without software
If you send fewer than five invoices a month, a calendar and a folder of templates is a real system. Block 30 minutes on Friday. Export or write the list of what is unpaid. Send the touch that matches the age of the invoice. Do not rewrite the email to sound nicer than last week. Nicer is how the sequence dies.
Use the templates in how to ask for payment politely and, when the tone has to harden, what to say when a client will not pay. A late fee calculator is enough math for a fee you already wrote into the terms. The payment reminder generator will draft the email if the blank page is the thing you avoid.
The honest limit is you. The calendar does not send anything if you skip Friday. Software exists for that skip, not because email is hard. If you have not skipped a chase in six months, you do not need a subscription to feel professional.
How to choose
Three questions, three different answers.
- Do you want the lowest price and you can tolerate a dense app? Use Invoice Ninja Pro at $14, or stay on its free plan until you have more than five clients and accept that reminders are a paid switch.
- Do your invoices already live in Xero, QuickBooks, or similar, and is there a finance person who will own the queue? Look at Chaser, and expect a finance-team price, not a freelancer price.
- Do you want reminders attached to the invoice itself, without taking on full accounting? Bonsai if you also want contracts in the same place. FreshBooks if you want the books. Incusia Pro if you want the chase and a locked $29, and you are willing to issue the invoice there.
If none of those feel true, stay on the calendar for another month and count how many reminders you actually send. The number will tell you whether you need software. A comparison that never names a winner other than itself is an ad. Invoice Ninja wins on price. Chaser wins when the ledger is already chosen. The others win when you want the invoice and the reminder in one place and you accept the extra product around them.
What stop-on-payment looks like on a real Tuesday
Picture an invoice for $2,400 due on the 1st. The tool sends a heads-up on the 28th of the previous month. The client pays on the 2nd, but the bank feed or the manual 'paid' click happens on the 3rd. If the day-after reminder is queued for the morning of the 2nd, it may already have left. That is acceptable. What is not acceptable is the day-7 email still leaving on the 8th because nobody told the tool the balance was zero.
Ask the vendor what event cancels the sequence. A paid status, a zero balance, a matched bank transaction, or only a human click? If it is only a human click, you have rebuilt the original problem. You will forget the click on the week you are busy, and your best client will get a firm letter about money they sent. I would rather a tool be slightly late to notice a payment than deaf to it.
Editing the words is not a cosmetic setting
The subject line does more work than the body. 'Invoice 1842 is 7 days overdue' gets opened by an accounts person. 'Just checking in!' gets archived by everyone. You want a different subject at each step, the invoice number in it, and the amount somewhere in the first two lines of the body. If the due date exists only inside the PDF, the email failed before they downloaded anything.
Read the default copy out loud. If you would not send it to a client you like, change it before you enable the schedule. Friendly early notes should assume the invoice was missed. Firm later notes should name a date and the amount, not a mood. Final notes should name the next step you will actually take. A template that threatens a lawyer you will not call trains the client to ignore the next one too. The payment reminder generator is useful for drafting those four voices before you paste them into whatever app you pick.
A week of chasing, with and without the tool
Without software, Monday is 'I should email North Studio.' Tuesday is a client call that eats the afternoon. Wednesday you draft three lines and delete them. Thursday the invoice is 11 days late and you feel behind, so you write something sharper than the situation deserves. Friday you do not send it. That is the month the cash-flow hole opens, and it opened because of hesitation, not because the client refused.
With a sequence you trust, Monday's email already left on Sunday night or Tuesday morning, in the words you approved when you were calm. You still have to handle replies. You still have to decide what a 45-day silence means. You do not have to invent the routine. That is the only benefit that matters. Reports, client portals, and tax packages are fine products. They are not why you searched for software to chase overdue invoices.
If you want the routine without a subscription yet, put the five dates on the invoice itself. The payment due date calculator will list them. Then decide, after a month of actually sending those emails, whether a tool should own the list. Buying software to avoid a habit you have not tried is how people collect logins.