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Contribution to MathML-Core Support - "sponsor"$100.00 USD
Support Open Collective$15.00 USD
Today's charge$115.00 USD
If you select PayPal, you will be charged on the same day each month. Otherwise the next charge will be on May 1, 2023 and then the first day of each month. You can cancel or edit this contribution by going to 'Manage Contributions'.
Is my contribution secure?
Open Collective doesn't store sensitive payment data (e.g. Credit Card numbers), instead relying on our payment processor, Stripe, a secure solution that is widely adopted. If our systems are compromised, your payment information is not at risk, because we simply don't store it. Learn more.
Does Open Source Collective have a contribution policy?
Contributions to Open Source Collective are not tax deductible in the U.S. While OSC is a non-profit, it is a 501(c)(6) not a 501(c)(3).
What's the difference between an individual and an organization profile?
Organizations represent a company or entity, while individual profiles represent a person. Organization profiles can have multiple team members (individual profiles) who have access to edit it and make financial contributions in its name. If a contribution or expense is for a company, it's important to use an organization profile so the correct billing information shows up on receipts and invoices. Organizations can also issue gift cards.
What information is shared with the Collectives?
What is an incognito contribution?
Publicly, the contribution amount and date will be visible in the transparent budget, but your identity will be obscured, appearing only as "incognito". The contribution will not be linked to your public profile.