Suppliers

Summary: the Suppliers module records the companies you buy from. Their tax data (RNC, withholding) feeds purchase orders, supplier invoices, and the DGII 606 report.

Reading time: ~4 min

When to use this

Read this article if you need to:

• Register a new supplier before generating their first purchase order or supplier invoice.
• Update the RNC, payment terms, or withholding rate of an existing supplier.
• Export your supplier list.
• Quickly locate a supplier using their sequential code.

Before you start

• You need the suppliers:create or suppliers:update permission.
• Have the supplier's RNC on hand - without a valid RNC the supplier does not appear correctly in the 606 report.
• If there are already categories related to this supplier, you can link them later from Categories.

Step by step

Create a supplier

1. Enter the module. In the sidebar press Operations → Suppliers. (screenshot: supplier list)
2. Press "New supplier".
3. Basic section.
   • Name (required) - legal name or trade name.
   • Active - turn off the switch to retire the supplier from the catalog without deleting it.
4. Tax section.
   • RNC (format 001-0000000-0 or whichever applies). It is unique per company: two of your suppliers cannot share the same RNC.
   • Taxpayer type - classifies the supplier: Individual, Legal Entity, Single-Owner Business, Non-Profit Entity, or State. This data determines how much your business withholds when you buy from them (see below). If you leave it undefined, Mosce ERP infers it from the supplier's RNC or ID.
   • Withholding rate (%) - percentage you withhold from the payment to the supplier for ITBIS or ISR. If no withholding applies, leave 0.
5. Contact section.
   • Email and phone.
   • Full address.
   • Contact person and contact phone (the specific person you coordinate with).
6. Terms section.
   • Payment terms (days) - days the supplier grants you to pay (e.g. 30, 45, 60). The system uses this value to suggest the due date on supplier invoices.
   • Notes - internal free text (agreed discounts, secondary contact, etc.).
7. Press "Create".

The supplier code

When you create a supplier, Mosce ERP automatically assigns a sequential code: the first supplier of your company receives 001, the second 002, and so on.

• It is automatic - you do not type it and it cannot be edited.
• It is unique per company - each company keeps its own numbering.
• It is not reused - if you delete a supplier, their code is not reassigned to another.
• It appears as the first column in the supplier list and on the supplier detail sheet.
• You can search for a supplier by typing their code in the list search box.
• It is included in exports (CSV and XLSX) and you can filter by it in the Export builder.

It is a short, easy-to-remember reference for identifying the supplier without depending on the RNC or the full name.

Edit a supplier

Press the pencil icon in the row or open the detail and select Edit.

Taxpayer type and withholding

The supplier's taxpayer type defines what ITBIS and ISR withholding your business applies when you buy from them, if you are designated as a withholding agent:

• Individual and Single-Owner Business withhold the same: on services, 100% of the ITBIS is withheld plus the ISR according to the type of service; on goods nothing is withheld. That is why the Single-Owner Business appears as a separate option even though it withholds like an Individual.
• Legal Entity: on professional and independent services or rental of movable goods, 30% of the ITBIS is withheld; on goods nothing is withheld.
• Non-Profit Entity and State follow their own particular rules.

If the supplier is not registered with the DGII (informal), your business issues an electronic Purchases voucher on their behalf and withholds 100% of the ITBIS, plus the ISR on services.

The full rules, rates, and citations of the DGII norms are in ITBIS and ISR withholdings on purchases. Define it well on the record so that the withholding you see when receiving the purchase is the correct one - if you do not define it, Mosce ERP deduces it from the RNC or ID.

Link products and categories

There is no "products" field inside the supplier. The relationship is managed the other way around:

• By category: edit the category and select the supplier in the Supplier field. When a purchase order includes products from that category, the system preselects that supplier.
• By purchase order: when creating the order, you choose the supplier manually - it requires no prior link with each product.

Use the supplier on purchase orders and invoices

1. Go to Inventory → Purchases (or Operations → Purchase orders depending on your configuration) and create a new order.
2. Select the supplier in the corresponding field.
3. The system automatically fills in the RNC and payment terms, which can be adjusted in the order itself.
4. To record the received invoice, go to Accounting → Supplier invoices and link the order or create the invoice standalone by selecting the same supplier.

Export to CSV

Press Export CSV in the list header. Useful for feeding the 606 report or reconciling with the DGII.

Delete a supplier

Press the trash icon. Deletion is logical (soft delete): the supplier is hidden but the integrity of past invoices and orders is preserved.

Expected result

• When creating purchase orders or supplier invoices, the supplier appears in the selector with their data pre-filled.
• The tax data is included in the 606 report generated from Administration → Tax.
• The withholding rate is applied automatically when paying supplier invoices.

Common errors

Related

• Categories
• Products
• Purchases - receive merchandise and withholding preview.
• ITBIS and other taxes - ITBIS and ISR withholdings on purchases by supplier type.
• DGII reports - 606 format and IR-17.