A One-Person Company Deserves a Proper Back Office Too

In most systems, “accepted” is a status you set yourself in your own back office. When a client later says they never agreed to that price, you have nothing to show.

Here a quote can produce a login-free link you email to the client. They open it, see the full document, and accept or decline themselves, with a note if they want. That decision enters the audit trail with its timestamp and source IP, and the audit trail is a chain of hashes, any later modification leaves a trace..

• The link expires, and can only be answered once. It stays viewable afterwards, but the decision can't be changed
• One click turns an accepted quote into an order, copying amounts and line items across; later edits to the quote never touch the order
• You're reminded before it expires, and a daily background job marks expired quotes, so there is no status to maintain by hand

Outstanding balance = order total − payments received, recalculated from the documents every time and never cached. “The books say paid while the money never arrived” cannot happen.

• Grouped by client into 30/60/90-day ageing buckets, so you can see who to chase first
• Expand any client to see paid and outstanding per document
• Foreign-currency orders are converted to TWD at the rate on the order before totalling
• Monthly statements print ready to send, with opening and closing balances

Output and input tax for Form 401 are totalled live from invoices and vouchers, with no separate reporting tables, so the report can never disagree with the documents.

• Taxable, zero-rated and exempt are computed separately from the tax-category snapshot on each line
• Sales allowances reduce output tax in the period they are issued; no reopening the previous one
• Export the CSV used for the 401 filing, with figures that reconcile directly
• The dashboard shows the next filing deadline and the days remaining

The value of an audit trail rests on it not being editable after the fact. In most systems append-only is just a promise. Anyone with write access to the database (the platform included) can quietly alter one row, and nobody would ever notice.

Hash Chain Audit Mechanism

Every record folds the previous record's hash into its own. Change one and every record after it stops matching; delete one and the sequence has a gap.

External Witness Mechanism (implemented, not yet enabled)

A chain alone doesn't stop someone with write access from recomputing the lot, so the chain head has to be deposited periodically with a third party the platform doesn't control. The mechanism is fully implemented, but the staging deployment is not yet connected to an external witness endpoint . For now there are only local checkpoints.

Verification Results Checked by Yourself

The activity log shows the verification result directly, along with when the last anchor was made and whether it actually reached the outside. The whole point is that you do not have to take this Company's word for it. You can check for yourself.

“Who Has Viewed Your Data” Is Also Fully Recorded

Platform administrators can only manage accounts and company profiles; they may not access any business table. When content genuinely has to be retrieved (a court order, say), a reason must be entered, the access itself becomes an audit record, and you are notified..

The protection comes from you knowing and someone being accountable, not from hiding things.

Complete Explanation of Information Security and Audit Mechanisms

Contacts and products

Clients and suppliers managed together; enter a tax ID and the company name and address fill themselves in.

Quotes and orders

A state machine governs the flow and rejects illegal transitions. Copy an old document so recurring clients don't start from scratch.

Inventory

Stock is totalled live from the ledger, never cached. Negative stock is allowed but flagged in red.

Payments and e-invoices

ECPay payments and e-invoicing; payment callbacks re-check the amount before the status changes.

VAT filing

Form 401 output and input tax totalled live, allowances included, exportable as CSV.

Working with your accountant

Invite your accountant so they never need your password. Roles: owner, accountant, read-only.

Multi-currency

Foreign-currency documents store a rate snapshot, so later rate moves never change an issued document. Invoices are still issued in TWD.

Mail service

Guided setup for mail on your own domain, plus forwarding rules (through a third-party provider; this Company does not run mail servers).

Activity log

Everything that has happened on your account is there to look up, with the integrity check result.

Detailed Explanation Section for Each Feature

No credit card is required, and billing is not yet live. The plans differ only in quotas and feature scope. Please apply with confidence.