The accounting tool built for Thai businesses
Issue invoices, quotations, receipts, and tax invoices with PromptPay QR baked into every PDF. Reminder emails go out daily until your client pays, and LINE pings you when a bill is approaching/past due or when a client responds to a quotation.
Trusted by Thai freelancers and SMEs
10,000+
Documents issued via Flowly
5 hrs/week
Average time users save
< 30 sec
Average time to issue one document
4.8/5
User satisfaction rating
Problems every freelancer knows
Are you still making invoices in Word?
Unprofessional documents
Word or Canva templates that you have to manually renumber every time.
Lose track of unpaid bills
Excel sheets, paper notes, and forgotten client follow-ups.
Tax headaches
Withholding tax 3% calculated by hand, often forgotten.
Multiple businesses
Side hustles and full-time work mixed together with no separation.
Why Flowly
Features that simplify your business
Real-time alerts on LINE
Link LINE once and get pinged when a bill is approaching/past its due date, when a client responds to a quotation, or when you mark an invoice as paid — no need to check the web.
Auto follow-ups, every day until paid
Set it once and the system emails clients before the due date and every day after — override the cadence per invoice or fall back to your business default.
Convert documents instantly
Turn quotation → invoice → receipt with one click. No need to recreate.
VAT & tax invoice ready
Toggle VAT per document. Issue tax invoices with auto-generated numbers.
Auto withholding tax calculation
Set WHT 3% and the system calculates and displays net amount instantly.
Multiple businesses, 1 account
Switch workspaces instantly. Invite team members. Data stays separated.
Who it's for
Built for operators, not just accountants
Whether you're a solo freelancer, a small business, a studio, an event organizer, or an agency managing multiple projects, Flowly keeps documents, income, and client follow-ups organized in one place.
Freelancers and creators
Send polished documents fast, see what is still unpaid, and avoid recalculating tax by hand every time.
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Small and medium businesses
Keep clients, expenses, products, and reports in one system instead of scattering work across Excel, Word, and chat.
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Organizers & agencies
Event organizers, ad agencies, production houses, and wedding planners can issue project quotes, billing invoices, and tax invoices — with multi-project workspaces in a single account.
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Growing teams
Separate workspaces, invite teammates, and organize document operations without mixing business data together.
Everything in one place
All features — no extra tools needed
From document creation and payments to tax, team, notifications, and security — Flowly brings it all together.
Documents & billing
Cover your full billing workflow in one place
Quotation, invoice, receipt
All three document types + full Thai tax invoices with Sarabun Thai font baked in.
Full-form Thai tax invoice
Tax ID, branch number, VAT breakdown, auto-running numbers — all Revenue Department fields.
One-click conversion
Quote → invoice → receipt, without re-entering anything.
3 PDF templates
Minimal, Modern, Classic — pick what matches your brand.
Multi-page PDFs
30+ line items? Table auto-splits with repeating header and page numbers.
Public share links
Send a link clients open without signing up — includes PromptPay QR.
Online quotation approval
Clients approve/reject via link with a note — you get LINE alert instantly.
Recurring invoices
Set once, auto-issues on your schedule (weekly/monthly/quarterly) with auto-email.
Get paid faster
Thai payment channels that clients already use
PromptPay QR
QR appears on every document and PDF — scan to pay instantly.
Separate PromptPay account name
Enter the account holder name separately from the business name (common for owner's personal account).
Finance & tax
See clear numbers and auto-calc Thai taxes — no accountant required
Real-time dashboard
Income, expenses, profit, unpaid, overdue — all on one screen.
Expense tracking
Categorized with donut chart and real profit auto-calculated.
3% withholding tax
Auto-compute WHT (40(2)/40(8)/other) with net amount you actually receive.
VAT 7% + tax invoice
Supports both VAT-inclusive and exclusive pricing — Revenue Department compliant.
Annual tax reports
Income, expense, VAT payable, WHT — ready to file PND and PP30 forms.
AI finance insights
AI summarizes your finances and predicts income for the next 3 months.
Notifications
Keep clients and your team in the loop, automatically
Auto email reminders
Before-due and after-due reminders per invoice, configurable days.
LINE push notifications
Owner gets LINE messages on client payment, quotation response, overdue invoices.
Workflow & team
Works solo and scales cleanly when your team grows
Client CRM
Store tax ID and contact info, view per-client invoice history.
Product & service catalog
Build a reusable item list once, pull into invoices in a few clicks.
Process board (Kanban)
Track sub-tasks per invoice on a Kanban. Drag between lanes, rename lanes freely.
Multiple businesses
Run several workspaces side-by-side — separate numbering, clients, reports.
Team invites
Invite members by email with owner / member / accountant roles.
Activity log / audit trail
Every document change is logged with timestamp and actor.
Compliance & security
Thai law ready with secure-by-default data handling
PDPA-ready
Cookie consent banner + privacy policy aligned with Thai PDPA.
Thai / English
Switch the entire UI, PDFs, and reminder emails between Thai and English.
Keep work moving
More than document creation: follow-up and organization built in
Flowly is designed to reduce back-office busywork, from reminding clients automatically to organizing document status across multiple businesses.
Auto follow-ups via email AND LINE
Flowly emails clients every day past the due date until they pay, and pings you on LINE when a bill is approaching/overdue or a client responds to a quotation — set the cadence per invoice or use your business default.
Recurring invoices, set & forget
Set once and Flowly auto-issues a fresh invoice every cycle — perfect for retainers, monthly clients, rent, and subscription-based shops.
Organized document workflow
See every document in a board view across draft, sent, overdue, and paid states so your team shares the same operating picture.
PromptPay QR on every PDF + public link
Every PDF includes a PromptPay QR your client can scan to pay instantly, plus a public share link so they can view the doc, approve a quotation, or download the PDF — no signup required.
Ready in 2 minutes
From signup to first invoice, fast
Sign up free
Sign up with LINE, Google, or email. No credit card required.
Set up your business
Business name, tax ID, currency. That's it.
Send documents
Add clients, line items, download PDF, share via Email.
Comparison
Why Flowly instead of Excel or Word?
See how much time and how many errors your current workflow costs you.
Real customers
What real Flowly customers say
“Issuing receipts is so easy. The system is intuitive, and the Kanban Board makes our workflow much smoother.”
Somsak Concrete Ltd. Partnership
Head office, Surat Thani
Trusted by
Growing every month — your business could be next.
Pricing
Start free, upgrade when ready
No hidden fees. Cancel anytime.
Secure by default
Your data is encrypted and protected with industry-standard security.
Fast and focused
Built around freelancer workflows — no bloat, no busywork.
Thai and English, fully
Both the UI and generated PDFs use Sarabun for crisp rendering.
FAQ
Questions freelancers ask before switching
A quick summary of common search-driven questions about invoices, withholding tax, and getting started with Flowly.
Can Flowly create invoices, quotations, and receipts?
Yes. You can create quotations, convert them into invoices, and turn them into receipts in one workflow, then download PDF files or share them with clients right away.
Can Flowly really send notifications via LINE?
Yes. Link your LINE account to Flowly once and you'll get pings when a bill is approaching/past its due date, when a client responds to a quotation, or when you mark an invoice as paid. Each alert type can be toggled in settings (available on Pro plan and above).
How does Flowly's payment reminder system work?
Flowly emails clients before the due date by your chosen lead time, then continues every day after the due date until they pay. You can set a default cadence per business and override it on individual invoices (use -1 to disable reminders for any specific bill).
Does Flowly support 3% withholding tax for freelancers?
Yes. Flowly helps calculate withholding tax and the actual net amount you should receive, which reduces manual errors when preparing documents or tracking income.
Can clients pay me with PromptPay?
Yes. You can set up PromptPay details so clients have a faster way to pay, then send documents with payment information from the same workflow.
Can I use Flowly for multiple businesses or with a team?
Yes. Flowly supports multiple workspaces under one account, and supported plans let you invite team members to help manage documents and operations together.
Is Flowly suitable for small businesses (SMEs) and shops?
Absolutely. Flowly is designed for SMEs and service businesses that issue tax invoices and receipts regularly. It handles VAT, withholding tax, annual tax reports, and lets you invite staff to collaborate on documents.
Can event organizers, agencies, or production houses use Flowly for billing?
Yes. Event organizers, ad agencies, production houses, and wedding planners use Flowly to issue project quotations, billing invoices, and tax invoices — with multi-project workspaces and reusable client profiles.
Stop building invoices in Excel
Use Flowly free forever — send your first invoice in under 2 minutes. Faster than setting up a Word template.
No setup fees • No hidden costs • 2-minute setup • Full Thai language support